/*
 * Fundamental constants relating to 802.3
 *
 * Copyright (C) 1999-2019, Broadcom.
 *
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 *
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions
 * of the license of that module.  An independent module is a module which is
 * not derived from this software.  The special exception does not apply to any
 * modifications of the software.
 *
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 *
 * <<Broadcom-WL-IPTag/Open:>>
 *
 * $Id: 802.3.h 700076 2017-05-17 14:42:22Z $
 */

#ifndef _802_3_h_
#define _802_3_h_

/* This marks the start of a packed structure section. */
#include <packed_section_start.h>

#define SNAP_HDR_LEN 6 /* 802.3 SNAP header length */
#define DOT3_OUI_LEN 3 /* 802.3 oui length */

BWL_PRE_PACKED_STRUCT struct dot3_mac_llc_snap_header {
    uint8 ether_dhost[ETHER_ADDR_LEN]; /* dest mac */
    uint8 ether_shost[ETHER_ADDR_LEN]; /* src mac */
    uint16 length;                     /* frame length incl header */
    uint8 dsap;                        /* always 0xAA */
    uint8 ssap;                        /* always 0xAA */
    uint8 ctl;                         /* always 0x03 */
    uint8 oui[DOT3_OUI_LEN];           /* RFC1042: 0x00 0x00 0x00
                                        * Bridge-Tunnel: 0x00 0x00 0xF8
                                        */
    uint16 type;                       /* ethertype */
} BWL_POST_PACKED_STRUCT;

/* This marks the end of a packed structure section. */
#include <packed_section_end.h>

#endif /* #ifndef _802_3_h_ */
